# File lib/phusion_passenger/platform_info/curl.rb, line 29
        def self.curl_flags
                result = `(curl-config --cflags) 2>/dev/null`.strip
                if result.empty?
                        return nil
                else
                        version = `curl-config --vernum`.strip
                        if version >= '070c01'
                                # Curl >= 7.12.1 supports curl_easy_reset()
                                result << " -DHAS_CURL_EASY_RESET"
                        end
                        return result
                end
        end